Electronic device and related sound leakage prevention method

The electronic device uses multiple array elements and audio processing to cancel sound leakage by generating overlapping sound waves, enhancing privacy during calls by maintaining sound quality and volume for the user.

JP2026507431APending Publication Date: 2026-03-04HUAWEI TECH CO LTD
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Patent Information

Application Number
JP2025542348
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-08-18
Filing Date
2024-08-15
Publication Date
2026-03-04

AI Technical Summary

Technical Problem

The effectiveness of existing sound leakage prevention methods for mobile phones is insufficient, particularly in bezel-less designs where the receiver is moved to the top of the screen, leading to significant sound leakage during handheld calls.

Method used

An electronic device with multiple array elements and an audio processing unit that processes audio signals to generate overlapping sound waves for cancellation, using filters for amplitude and phase adjustments to minimize sound leakage in specific areas.

Benefits of technology

Effectively reduces sound leakage, ensuring private calls without the need for headsets by maintaining sound quality and volume for the user while minimizing external sound emission.

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Abstract

An embodiment of this application discloses an electronic device and a related sound leakage prevention method. The electronic device includes an audio processing unit, a first-type array element, and a second-type array element. The audio processing unit is configured to receive an initial audio signal and determine a first-type audio signal and a second-type audio signal based on the initial audio signal, where the first-type audio signal includes M first audio signals and the second-type audio signal includes N second audio signals. The audio processing unit is configured to transmit the first-type audio signal to the first-type array element and the second-type audio signal to the second-type array element. The first-type array element is configured to output M first sound wave signals based on the corresponding first audio signals. The second-type array element is configured to output N second sound wave signals based on the corresponding second audio signals. The N second sound wave signals are used to superimpose and cancel the M first sound wave signals at multiple points within a first preset area. According to the embodiments of this application, when the electronic device is used for calling, a private call can be realized, thereby improving the user experience.
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